this video shows you how to use both types of Lithium tester and lower voltage buzzer device used for Drone or RC car Watch 3S 40A BMS full review: *** Purchase Lipo buzzer alarm from *** Amazon Canada: Amazon USA: Amazon All Europe: Learn Arduino in 30 Minutes (video): Tutorial by Ahmad Shamshiri form Canada **************************** Learn Arduino from a proven instructor with 100s of projects, code, wiring diagram in structured course in one place. Purchase Arduino Course at : **************************** If you found this tutorial helpful, please support me so I can continue creating contents like this. Here is PayPal link Get early access to my videos by becoming my Patreon and and have your name mentioned at end of very videos I publish on YouTube: If you want to learn Arduino from proven instructor on **Udemy**: Follow me on Facebook Follow me on Twitter: Follow me on Instagram: Tutorial by Get other projects code and learn Arduino #robojax #robojaxLithium